Reproducing and imitating machine.



.8. 0. FANSLOW.

REPRODUCING AND IMITATING MACHINE.

APPLICATION FILED MAR. 12, 1908.

QN m xm, RVV

THE COLUMBM PLANUGRAPH co., wAsHxNu'L-QN, D. c.

B. 0. FANSLOW.

REPRODUCING AND INIITATING MACHINE.

APPLICATION FILED MAR. I2. IQOB.

Patented J une 27, 1916.

4 SHEETS-SHEET 2.

jizz/67a for i 7g.

j@ /f/ fsw@ THE COLUMBIA PMNomzAPl-x co., WASHINGTON, D. c.

B. o. FANsLow. l REPRODUCING AND'IMITATING MACHINE.

l APPLICATIGN FILED MAR. l2 1908. 1,188,428.

Patented June 27, 1916.V

4 SHEETS-SHEET 3.

...wwwr

fraz/67330 71 Berg B. 0. FANSLOW.

REPRODUCING AND IMITATING MACHINE.

4 SHEETS-SHEET 4.

Patented June 27, 1916.

fzzfz tij In van Z0?" wh uw APPLICATION FILED MAR. I2, |908.

i Ilmwlmllmnl l 'rlln covLumum ruuwuKAvll co.. WASHINGTON. D. c.

ENiTEn sTaTEs EETENT oEEicE.

BENJAMIN OTTO FANSLOW, OF LOS ANGELES, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO POLYGRAPI-I DUPLICATING TYPEWRITER COMPANY, A CORPO- RATION OF NEW YORK.

EEPRODUCING AND IMITATING MACHINE.

i Specification of Letters Patent.

Patented June 27, 1916.

App'neation mea March 12, 1908. serial No. 420,949.

To aZZwwm t may concern." i Be it known that I, BENJAMIN OTTO FANsLow, `of the city ofV Los Angeles, in the county of Los Angeles and State of California, have invented Improvements in Reproducing and Imitating Machines, of which the following is a full, clear, and eX- act specification, reference being had to the accompanying drawings and tothe letters and igures marked thereon.

My vsaid invention which relates to improvements in machines for reproducing copies of documents, consists of a device or devices which are attached to the class of reproducing and imitating` machines commercially known as polygraph machines, in respect of which Letters Patent of the United States-have been granted to me,` theA said BENJAMIN O'r'ro FANsLow, #873,361, issued December 10th, 1907, #873,930, Vissued December 17th, 1907, and an application for patent for` another machine for. the same purpose having the Serial7l Number 359,284, filed February 21st, 190

The device or attachment constituting my present invention has for its objectY to automatically discharge each sheet` of paper after the impression of the type used in the machine has been completed thereon; each such sheet of printed paper being discharged alternately from opposite ends of the machine, -thereby leaving the machine in readiness to receive the vnext sheet of paper upon which an impression from the type is to be made.

The device constituting my present invention. is not only specially applicable to the reproducing in my aforesaid application for Letters Patent, but it is` generally applicable to'4 all such printing machines of the class wherein the types are held stationary in the flat bed or base of the machine, and from which the impression is madethrcugh an inking rib,- bon upon which the paper to be printed is carried and pressed down on the printing ribbon, and thence on to the types, by the traveling action of an impression roller moving horizontally in a carriage traversed upon Vthe flat horizontal bed or base of the machine, and forced with sutlcient pressure upon the paper on which the impression is and imitating machines described 1n my aforesaid yLetters Patent, andI to be made, both the inking ribbon and the paper being also stationary with the type during the printing operation.

Upon the annexed drawings, Figure 1, is a side elevation of a polygraph machine, a portion of the base or bed being broken away, and showing theme'chanism attached thereto fork throwing oil each printed sheet of paper in succession at opposite ends of the said machine, alternately. Fig. 2, is an end elevation corresponding to Fig. 1, being .drawn inthe direction of the arrow X, above Fig. 1. Fig. 3, is a Aplan corresponding to vthe machine shown at Fig. 1, illustrating the 'device constituting my invention as applied thereto. Fig. 4, is a transverse section onthe line a, a, Fig. 1. Fig. 5, is a transverse section on the line b, b, Fig. 1, showing parts thereof, namely, the ratchet wheel andpawl in end elevation, and on a larger scale. Fig. 6, is a plan of the paper gage of the device constituting my present invention, and part of a traveling. chainl operated by,y afsprocket wheel. Fig. 7, is a side elevation of said .gage end corresponding part of said `chain shown. in Fig. 6. Fig. 8, is aplan of a gage adapted to work inv combination with Vthe sprocket chains more especially for the purpose of printing postal cards, and other printing surfaces of small area. Fig.v 9, is a side elevation of the gage V'for printing upon postal cards, and cthersurfaces of small area. Fig. 10, is a vertical section of some parts of the machine showing a modified arrangement of the rack and operative connections for driving the sprocket chains and their attachments. Fig. l1,- vis a transverse section up'onthe linesc, c, Fig. 10,'and showing some Yparts of my device in elevation. Fig.V 12, is 'a vside elevationof'a'modification of' my invention applied to a polygraph machine, in which the sheet of paper after each printing operation is--thrown o the machine in a direction opposite to that wherein the sheet of paper leaves the machine with my invention applied thereto as shown at Fig-1. Fig. 13, is a transverse section of part of themachine upon the line d, d, Fig. 12. Fig. 14, is lan end elevation of the carriage, and driving gear and crank handle of the end of the impression roller carriage opposite vto that shown in Fig. 12. Fig. 15, is an elevation of the end of the carriage, impression roller, crank handle, and driving gear, corresponding t0 Fig. 14. Fig. 16, is a horizontal section through the crank and its fixed internal gear taken on the line e, e, Fig. 14, and also shows in broken sectional plan View an adjacent end portion of the roller carriage. Fig. 17 is a detail hereinafter described.

ln Figs. 1, 2, and 3, of the drawings, the base of the machine is marked 1. The upper part of the base 1, is flanged outward at either side as shown more especially in Figs. 2, and 3, and these flanged portions of the base 1, constitute the smooth upper rails upon which the ends 2, of the impression roller 3, travel, as is well understood. rlfhe impression roller 3, is held in adjustable bearings 5, in the carriage 4, there being an axis 6, through the center of the impression roller 3, having gudgeons at its ends which fit rotatively into the holes in the adjustable bearings 5.

Upon one end of the axle 6, the crank handle 7, is carried, so that by rotating the crank handle 7, the impression roller is rotated, and moves the carriage 4, with its connections alternately from end to end of the smooth rails forming the top surface of the bed or base 1. The lower part of each end of the carriage 4, is bifurcated as shown more especially at Figs. 1, and 3, and in these bifurcations studs 8, are fixed. The studs 8, project inwardly, and each of them carries a roller 9, which operates in the groove 10, formed in the under part of the flange constituting the top of the bed or base 1. By adjusting the set screws 11, the requisite pressure is'imparted to the bearing blocks 5, so that while pressing downward the elastic ends 2, of the impression roller 3, upon the smooth rails constituting the top of the bed or base l, thepressure caused by the adjustment of the screws 11, also pulls upward the carriage 4, thereby causing it to press the rollers 9, into the grooves 10, to any required degree of pressure for insuring positive travel, when the crank handle 7, is rotated in either direction, both of the carriage 4, and the impression roller 3, alternately from end to end of the machine.

Transversely of the machine, and in suitable bearings there are carried the inking ribbon rollers 12, upon which the inking ribbon 13, shown in dotted lines in Fig. 1, in end elevation in Fig. 2, and in part in plan in Fig. 3, is carried, and in such manner that while any length of inking ribbon is unwound from either of the rollers 12, a corresponding length of ribbon is wound upon the other roller 12, according to the direction in which the ribbon is being traversed. The inking ribbon passes from each of the inking ribbon rollers over a carrier roller or idler 14, and thence passes at an angle upward and over the surface of the type 15, carried in the chase 16, shown partly in plan in Fig. 8, and in dotted lines in Fig. 1, the said type 15, being held in rows by the furniture 17 shown in dotted lines in Fig. 1, and in part in plan in Fig. 3.

The toothed wedges 18, and 19, respectively, constitute well known means for tightening the furniture 17, against the rows of type 15, and being operated by a toothed key as is well understood with printing and type-holding mechanism, need not be herein further referred to.

Each sheet of paper upon which an impression is to be taken from the types 15, is laid upon the flat surface of the inking ribbon 13, and in succession for any required number of printed reproductions of the type, the same being successively removed after each printing operation by means of the apparatus constituting my present invention now next to be described.

The apparatus or device constituting my present invention is as aforesaid, intended and adapted to remove each sheet of paper from off the inking ribbon at the completion of each printing stroke of the carriage and impression roller, and alternately at opposite ends of the machine, correspondingly with the direction of movement in which each successive printing operation is performed. This apparatus or device consists of a toothed bar 20, preferably arranged at the interior of one side of the base 1, as shown in Fig. 10, but which bar and the gearing which it operates may also be operatively adapted to the exterior of the base 1, as shown at Fig. 1.

l/Vhen the bar 20, is arranged upon the exterior of one side of the base as shown at Figs. 1, and 2, it is supported slidably in two carriers 21, 21, attached by screws 22, to the side of the base 1, as shown more especially at Fig. 1. This bar 20, has also a guide 23, at its center for giving vertical vsupport to counter-act any tendency to bending of the bar 20, by its interaction with the pinion 24. The bar 20, at each end thereof is bent outward intoV two projections 25, which projections are struck alternately by the strikers 26, attached one at each side of one end of the impression roller carriage 4, as the carriage 4, alternately approaches toward the end of its travel. The pinion 24, with which the toothed rack 29 at the central under part of the bar 20, gears, is carried upon the shaft 27 which extends across the entire width of the machine, and has bearings in the sides 1, thereof. Upon that part of the shaft 27, which is adjacent to each of the inner sides 1, of the base, a

sprocket wheel 28, shown in full lines in Fig. 10, andin dotted lines in Fig. 1, also in full lines in Fig. 2, is carried upon the shaft 27. From this arrangement it will be obvious that as the impression roller carriage 4, of the machine is traversed alternately from end to end of its movement, that one of the strikers 26, comes into contact with one of the projections 25, of the bar 20, some time before the completion vof the travel in either direction of the carriage 4, so that one of the strikers 26, moves the bar in the direction of its travel throughout the remainder of its movement upon the base of the machine, and in doing so causes the teeth 29, at the center of the bar 20, to rotate the pinion 24, and the sprocket wheels 28, in the same direction as that of the ho-rizontal movement of the bar 20.

Toward either end of the machine there are carried two sprocket carriers or idlers 30, in the position shown at Figs. 1, 2, and 3. These carriers or idlers 30, are loosely rotatable upon the studs 31, fastened into the sides of the framing 1, and they serve to carry and support the sprocket chains 32, one at each side of the frame of the machine and between the side-bars thereof, and at such a distance apart as to accommodate the inking ribbon 13, between them while the sheet of paper 33, is of such width that the opposite edges thereof nearly bridge the space between the outer edges of the sprocket chains 32. Y

From the mechanical arrangement now last described it will be understood that the sprocket chains 32, the printing` ribbon 13, and the sheet of paper 33, are stationary during the time the printing operation from the type 15, is taking place, and that shortly after the carriage 4, has traveled O the surface of the paper which it has pressed down upon the inking ribbon 13, and upon the type 15, to receive an impression therefrom, then the contact of one of the strikers 26, with the corresponding projecting end 25, of the bar 20, moves the latter to the end of the travel of the carriage 4, thereby rotating the toothed pinion 24, and the sprocket wheels 28, and causing the travel of the sprocket chains 32, correspondingly.

Upon each sprocket chain 32, there is carried the gage 34, showin at Figs. 1, and 2, and upon a larger scale in Figs. 6, and 7. As the sprocket chain 32, travels, these gages 34, are mo-ved horizontally by the sprocket chains 32, and as the gages 34, are in contact with one of the two opposite edges 'of the paper 33, these gages 34, deliver the paper as it is printed, from o'f the inking ribbon 13, and discharge each printed sheet of paper in succession from the machine and alternately at opposite ends thereof.` The gages 34, are of such height that being carried as they are upon the iieXible sprocket chain 32, they readily pass under the impression roller 3, as the sprocket chains are moved alternately in opposite directions.

lVith regard to the direction in which the from alternate ends of the machine, it is eX- 'plained that the gages 34, after a printing operation has been completed, moving as they do, cause the printed sheet of paper to be delivered off the end of the machine between the printing ribbon 13, and the impression roller 3, in the direction of one end of the machine as indicated by the curved arrow Y, Fig. 1.

The bar 20, has on its upper edge two horizontal toothed racks 35', and 36, respectively. These racks 35, and 36, respectively gear into toothed pinions 37, and 38, rotating loosely upon the aXes 39, and 40, of the inking ribbon rollers 12. The course of the inking ribbon 13, is indicated in dotted lines in Fig. 1, wherein it is sho-wn that its two ends are fastened oneto each of the inking ribbon rollers 12. On the aXes of the inking ribbon rollers there are disks 43, as shown in elevation at Fig. 1, and in sectional detail at Fig. 4. These disks are secured respectively to the pinions 37 and 38 and are each provided with a pawl 44, and a spring 45, either o-f which, when either of the pawls 44, is free to be moved downward, presses the tooth of the pawl into the toothed spaces of one of the ratchet pinions 46, one of which is rigidly attached to each of the inking ribbon roller shafts 39, and 40. One only of the pawls 44, is pressed by the -spring 45, into the teeth of one of the ratchet pinions 46, at a time, while the other pawl 44, and its spring 45, are lifted upward by inserting and tightening the screw 47 in the hole 47, which prevents the corresponding ratchet pawl 44, from being pressed down into engagement with its adjacent ratchet pinion 46. This arrangement whereby one of the pawls 44, may be thrown and maintained out of action, while the other pawl 44, and spring 45, are maintained in action relatively with the other ratchet pinion 46, enables the inking ribbon 13, to be wound off one of the inking ribbon rollers 12, and on to the other inking ribbon roller 12, as the printing operation proceeds, that is to say, that as the upper toothed racks 35, and 36, of the bar 20, in engagement with the toothed pinions 37, and 38, rotate those pinions in opposite directions at each successive travel of the machine, so that one of the inking ribbon rollers which has its ratchet pinion 46, operatively in gear with its pawl 44, is that roller which winds up the inking ribbon from the other roller with which the pawl 44, is not in operative engagement, being held out of such engagement as aforesaid by the screw 47. This arrangement of the pavvls, their Operative springs, and the lratchet pinions, enables the pawl acting upon the ratchet pinion of the roller upon which the inking ribbon is wound, to be operated positively, so as t0 successive sheets of paper 33, are delivered wind up ribbon upon that roller 4during one 130 of the alternate strokes or travels of the machine, thereby allowing a fresh surface of inking` ribbon to be presented to the types 15, and to the next sheet of paper 33, placed in the machine for being printed upon; while in the reverse movement of the disk 43, when the pawl 44, moves backward over the edges of the teeth of the ratchet pinion 46, no rotation of the inking ribbon roller takes place, and the inking ribbon is therefore held stationary during the time the printing operations are being performed.

The gages 34, carried upon the sprocket chains 321, as hereinbefore described, are adapted for printing sheets of paper corresponding to the width apart of the gages, ibut when it is desired to print upon sheets of paper, or a card, of less width than the distance between the printing gages 34, upon each of the sprocket chains 32, then I use a gage extending the whole distance across the operative portions of the machine, each of the ends of which is fastened to one of the sprocket chains 32, as more particularly shown on a larger scale in Figs. 8, and 9, wherein the gage 48, extends entirely across the whole width of the operating parts of the machine and is fastened to the sprocket chains 32, as shown.

The sheet of paper 33, shown in Fig. 1, is the sheet of paper to be printed upon by the next operation of the carriage 4, and impression roller 3, in moving from the right hand end to the left hand end of the machine, so that after the sheet of paper 33, has the impression made upon it by the combined action of the carriage 4, the impression roller 3, the inking ribbon 13, and the types 15, it, so soon as the printing operation has been completed, and the left hand striker 26, comes into contact with the projection 25, commences te be moved off the machine by reason of the contact of the left hand striker 2G, with the left hand projection 25, causing the movement of the toothed rack rod 20, in the left hand direction, thereby causing the sprocket chain 32, moved in the left hand direction, and therefore the gages 34, to be also correspondingly moved, thereby pushing the sheet of paper 33, in front of them and beneath the impression roller 3, as the carriage 4, with the impression roller 3, arrives at the end of its stroke in moving toward the left hand end of the machine.

In the manner now described it is obvious that each sheet of paper after it is printed upon, is moved by the gages 34, toward the opposite ends of the machine, and thereby each printed sheet of paper is discharged from the machine.

Instead of the bar 20, with the end projections 25, thereon, and having therein the toothed racks 29, 35, and 36, as hereinbefore described with reference to Figs. 1, 2, and

3, of the annexed drawings, arranged upon the outside of the base 1, the position of the bar 20, with said racks may be changed so that the bar 20, and the respective toothed racks are arranged slidably upon the inner side of the base 1, as shown at Figs. 10, and 11. l/Vhen the bar 20, is so arranged the guides 21, are held to the inside face of the base by the screws 22, while the extreme ends of the bar 20, are bent outward at right angles to the length of the bar, these ends projecting through slots 49, in one side of the base at each end of the machine. The slots 49 are of a length corresponding with the distance traveled by the ends 25, of the bar 20, hereinbefore described, vand shown at Figs. 1, 2, and 3, so that the spur pinion 24, and the sprocket wheels 28, all carried upon the shaft 27, are operated rotatively in alternate directions to the proper extent.

The foregoing modification in part, of the machine, is completely shown in Figs. 10, and 11, but the other parts of the machine shown at Figs. 1, 2, and 3, are omitted in Fig. 10, as being unnecessary to show in that figure, such parts being in all respects the same as shown at Figs. 1, 2, and 3, and hereinbefore described with reference thereto. Corresponding parts in Figs. 10, and 11, are numbered'with the same reference numbers used in respect of Figs. 1, 2, and 3, and therefore need not be herein further described.

In order to reverse the order wherein the sheets of paper after being printed are thrown from the machine, that is to say, not thrown olf between the impression roller and the end of the machine toward which the carriage and impression roller is being traversed, but to be thrown off from the oppon site end of the machine after being printed, while the carriage and impression roller are approaching toward the end of their travel at the opposite end of the machine, I to some extent reverse the order 0f some of the parts of the bar 20, and of the position which it occupies with relationship to the spur pinion and sprocket wheels on the sprocket wheel shaft, also with respect to the direction in which the sprocket chains move in relation w to the movement of the carriage and impression roller, and in respect also to the direction of the movement of the gages on the sprocket chains with relation to the movement of the carriage and its impression roller.

At Fig. 12, of the annexed drawings, this reversal in part of some of the portions of my machine, and paper discharging apparatus are illustrated. In this figure it will be noticed that a horizontal toothed bar 20, is carried in guides 21, attached by screws 22, to one of the sides of the base of the machine as in Fig. 1, of the drawings, and that three sets of ratchet teeth 29, 35, and

36, are all situated upon the upper edge of the slidable bar 20. In this arrangement the spur pinion 24, on the shaft 27, engages with the teeth in the upper edge oi' the rock 29, so that the horizontal movement of the bar 20, rotates the pinion 24, and the sprocket wheels 28, in the opposite direction to which they are rotated by the arrangement shown in Figs. 1, 2, and 3, each time that the bar 20, is moved slidably in its bearings and guides by one of the strikers 26, coming into contact with either of the projections 25, at the ends of the bar 20. This arrangement causes the sprocket chains 32, to alternately move in relationship to the movement of the carriage 4, and the impression roller 3, in all respects oppositelyto those movements as hereinbefore described with reference to Figs. 1, 2, and 3and consequently this arrangement brings the gages 34, into their eXtreme position at one end of the machine when the carriage 4, and impression roller 3, are at their extreme positions at the opposite end of the machine; consequently when a sheet of paper has been printed and one of the strikers 26, comes into contact with one of the projections 25, the gages 34, bel

gin to move in the opposite direction of movement to that of the carriage 4, and the impression roller 3; at the same time throw ing off the sheet of paper which has been printed, indicated in Fig. 12, by the dotted line 50.

The sheet of paper 33, shown in Fig. 12,

is the sheet of paper placed against the' gage 34, upon the sprocket chains 32, for the purpose of being next Printed.

In consequence of the changed position of the slidable rod 20, in respect of the sprocket wheel driving pinion 24, as de'' scribed with reference to, and shown at Fig. 12, the slidable rod 20, is necessarily placed at a lower level than that of its position in Figs. 1, 2, and 3. This lower position is clearly indicated in Fig. 12, and being further removed from the axes 39, and' 40, of the ribbon rollers, spur pinions 37 and 38, of larger diameterthan the corresponding spur pinions shown at Figs. 1, 2, and 3, and herein described with reference thereto are necessitated. These spur pinions 37, and 38, instead oi. the disks 43, shown at Fig. 1, carry the pawls 44, upon the pivots 51, and are operated with the teeth of the ratchet pinions 46, by the action of the springs 45, in the same manner as hereinbefore described Vwith reference to the modication shown at Figs. 1, 2, and 3; it` being explained that one only .of the pawls 44, is in operation upon one of the ratchet wheels 46, during the time the inking ribbon is being wound in one 'direction from off one inking ribbon roller on to another inking ribbon roller.

The parts of the inking ribbon roller gearing, herein last described with reference to Fig. 12, are shown in transverse section in Fig. 13, and have the same numerals applied to corresponding parts, therefore they need not be further described.

As it is desirable in some cases to limit the range ofrmovement of the crank driving arm 7, and its handle; instead of mounting the crank directly upon the aXle 6, of the impression roller, I mount a spur pinion 52, directly on the aXis of the impression roller as shown at Figs. 14, and 15, and mount the crank handle 7, upon a stud 53, fastened into the side of the carriage 4, as shown at Figs. 14, 15, and 16. Upon the arm of the crank handle 7 I mount the in-V ternally toothed annulus 54, as shown at Figs. 14, 15 and 16, the said toothed annulus being fastened to the arm 7, of the crank handle by screws 55. The teeth of the internally toothed annulus 54, gear into the teeth of the spur pinion 52. By this arrangement, and as the internally toothed f annulus 54, is of very much larger diameter than the diameter of the spur pinion 52, a slight rotating motion of the crank handle 7 causes one or more rotations of the pinion 52, andv consequentlythe impression roller 3, carried upon the same shaft 6.

In order to vavoid the necessity of using such large spur wheels 37 and 38, as are shown on one end of each of the inking ribbon rollers in Fig. 12, I may use two small spurpinions 56, and 57, as shown at Fig. 17 the spur pinion V56, being carried loosely upon its stud 58, and the pinion 57, being rotatable loosely upon the aXis 39, of the inking ribbon roller. The pawl 44, and the spring 45, in Fig. 17,- are of the same arrangement as shown at Figs. 1, 2, 10, and 12, and are for performing the same operations as hereinbefore described with reference to Figs. 1, 2, 10, and 12, lexcepting that by reason ofV the lesser diameter of the pinion 56,l

as compared with the diameter of the toothed wheel 37, in Fig. 12, the winding up action of the inking ribbonrollers causes a greater length of inkingribbon to be wound off one inking ribbon roller at each operation of the inking ribbon rollers. .n

It is evident that theoutwardly projecting ends 25, of the rack bar 20, may be made tol act as stops orthe carriage 4', and the impression roller 3, by alternately striking the l travel of the carriage 4, is variable, being greatest when the screws 59, are placed in the extreme position in the outer ends of the base 1, and least when the said screws 59, are placed in the holes 60, farthest awayfrom the ends of the base 1.

The object of thus limiting the travel of the carriage 4:, is to save time in the operation of the machine by making the movement of said carriage 4, proportionate to the length of the portion of th'e sheet of paper or other material to be printed upon.

I claim as my invention- 1. In a machine of the character described, the combination of a bed, a reciprocatory carriage, an impression member movable with the carriage and traveling over the bed, an inking ribbon disposed between the bed Vand the impression member, means mounted independently of the carriage for automatically removing the printed sheet from the ribbon and bed and discharging said sheet from the machine, and means ac- -tuating the carriage and impression member and the sheet discharging means.

2. In a machine of the character described, the combination of a bed, a reciprocatory carriage, an impression member movable with the carriage and traveling over the bed, an inling ribbon disposed between the impression member and the bed, means for actuating the carriage and impression member' relatively to the bed for producing a printed sheet at each movement of said member over the bed in either direction, and means automatically removing the printed sheets from the ribbon and bed and discharging successively printed sheets alternately from opposite ends of the machine. y

3. In combination with a supporting frame, a carriage, an'impression-roller journaled in the carriage, means for traversing the frame and roller relatively and for rotating said roller,'said means including an internally-toothed wheelV journaled on the carriage, and a coperating pinion carried by the roller.

4L. vIn combination with a frame, a carriage, an impression roller journaled in the carriage, means for traversing` the roller and frame relatively and for rotating said roller including a pinion carried by the roller, an internally-toothed wheel supported by the carriage and meshing with said pinion, and means for creating frictional engagement between the impression-roller and the frame.

5. In combination with the frame having a fiat bed on which the sheet lies flat, a carriage mounted on the frame and carrying an impression-roller, means for rotating the impression-roller and simultaneously therewith traversing the carriage along the frame, means for moving the sheet from the bed and for discharging the printed sheet from the machine movable relatively to the carriage and frame, means for actuating the discharging means at the end of the traversing movement of the carriage, a printing ribbon coperating with the impressionroller, and means for intermittently actuating the said ribbon.

6. In combination with a flat composition bed, an impression-roller mounted to travel over said bed, mechanism for traversing an hiking-ribbon over said bed; and means for discharging the printed copy from said bed, including an endless sprocket-chain carrymeans for traversing said chain longitudinally of the bed in a plane below the plane of action of the ribbon.

V7. In a machine of the character set forth, the combination with a bed; of a reciprocating carriage operating thereover; an impression member movable with the carriage; sheet discharging means that operates over the/bed, and actuating devices for the sheet discharging means connected thereto, said carriage being located between the devices and operating them alternately on its movement back and forth.

8. In a printing machine, the combination of a composition bed upon which the sheet lies fiat; an impression-roller mounted above said bed; means for moving the bed and roller relatively and for rotating the roller; means for moving the sheet from the bed and for discharging the same from the machine, said means operating over the bed and under the roller and movable bodily relatively to the bed and roller; actuating devices for the sheet-discharging means connected to the latter; and means for actuating said devices for every relative movement of the roller and bed. Y y

9. In a printing mechanism, the combination of a bed adaptedto carry a page form l of printing surface, means for holding an nking ribbon in contact with such form, a roller platen, means for moving the same back and forth across the bed, and means mounted independently of the platen for automatically removing from the bed a sheet of paper laid thereon on each stroke of the platen in either direction.

10. In a machine of the character described, the combination of a bed, a reciprocatory carriage, an impression member movable with the carriage and traveling over the bed, an inking ribbon disposed between the impression member and the bed and connected at opposite ends to winding and unwinding rollers, means actuated by the carriage for imparting limited longitudinal movement to the ribbon between sheet printing operations, meansfor actuating the carriage and impression member relatively to the bed for producing a printed sheet at each movement of said member over the bed in either direction, and means automatically mg gages for acting upon said copy, and

removing the printed sheets from the ribbon and bed and discharging successively printed sheets alternately from opposite ends of the machine.

11. In a machine of the character described, the combination of a bed, a reciprocatory carriage, an impression member movable with the carriage and traveling over the bed, an inking ribbon disposed between the impression member and the bed and connectedV at opposite ends to winding and unwinding rollers, a rack-bar operated from the carriage to operate said rollers, a pawl and ratchet mechanism to permit each roller to turn in but one direction, and means between the rack-bar and rollers to cause said rollers to intermittently advance the ribbon so as to present fresh ribbon surfaces to the typebed between sheet-printing operations.

12. In a machine of the character described, the combination of a bed, a reciprocatory carriage, an impression member movable with the carriage and traveling over the bed, an inking ribbon disposed between the impression member and the bed and connected at opposite ends to winding and unwinding rollers, a reciprocatory rackbar and means for operating it from the carriage, a pawl and ratchet mechanism to permit each roller to turn in but one direction, and means between the rack-bar and rollers to cause said rollers to intermittently advance the ribbon so as to present fresh ribbon surfaces to the type-bed upon each reciprocation of the carrier.

Gopies of this patent may be obtained for ve cents each, by addressing the Y Washington, Il. C.

13. In a machine of the character described, the combination of a bed, a reciprocatory carriage, an impression member movable With the carriage and traveling over the bed, an inking ribbon disposed between the impression member and the bed and connected at opposite ends to winding and unwinding rollers, a rack-bar operated from the carriage to operate said rollers, a pawl and ratchet mechanism to permit each roller to turn in but one direction, means between the rack-bar and rollers to cause said rollers to intermittently advance the ribbon so as to present fresh ribbon surfaces to the typebed between sheet-printing opera-tions, and means for holding inoperative the pawl and ratchet mechanism of either roller.

14. In a printing mechanism, the combination of a bed adapted to carry a page form of printing surface, means for holding an inking ribbon in Contact with such form, a roller platen, means for moving the platen back and forth across the bed, and means moving in the general direction of the length of the bed and mounted independently of the platen for automatically removing from the bed the printed sheet of paper.

In testimony whereof, I have hereunto set my hand and seal at the city of 'Los Angeles aforesaid, in the presence of two subscribing Witnesses.

BENJAMIN orro rANsLow. [L s] Witnesses:

Sr. JOHN DAY,

IDA M. DAsKAM.

Commissioner of latents, 

